[r14-6114 Regression] FAIL: gcc.dg/tree-ssa/ssa-sink-16.c (test for excess errors) on Linux/x86_64

[r14-6114 Regression] FAIL: gcc.dg/tree-ssa/ssa-sink-16.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

de0ab339a795352c843f6e9b2dfce222f26588de is the first bad commit
commit de0ab339a795352c843f6e9b2dfce222f26588de
Author: Richard Biener <rguenther@suse.de>
Date:   Mon Dec 4 10:46:11 2023 +0100

    tree-optimization/112827 - corrupt SCEV cache during SCCP

caused

FAIL: gcc.dg/tree-ssa/ssa-sink-16.c (internal compiler error: verify_gimple failed)
FAIL: gcc.dg/tree-ssa/ssa-sink-16.c (test for excess errors)

with GCC configured with

../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-6114/usr --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld --with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl --enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-sink-16.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-sink-16.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-sink-16.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-sink-16.c --target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command line might save that.)
(However, please make sure that there is no potential problems with AVX512.)